Uploaded January 2026 | Updated September 2026, 1 week ago
This talk will summarize community-based research focused on assessing contaminants and health outcomes associated with formerly used defense sites, as well as persistent organic pollutants that accumulate in this region of the Arctic through long-range transport. Contamination of the Arctic exacerbated by the rapid pace and magnitude of climate change in the Arctic which is now known to be warming at a much faster rate than earlier studies predicted—nearly four times faster than the planet as a whole. Our research team has been conducting community-based participatory environmental health research with the tribes on Sivuqaq (traditional name for St Lawrence Island) for 24 years. Sivuqaq is located in the northern Bering Sea region of Alaska approximately 61 km from the Chukotka Peninsula of Russia and 322 km from the Alaskan mainland.
Much of our community-based research has focused on documenting the nature and extent of contamination at the formerly used defense site at Northeast Cape, including extensive sampling of sediments, plants, and fish. In partnership with the tribes, we have measured elevated contaminant levels correlated with endocrine disruption in people of the Island. We also investigate the levels and effects of persistent chemicals derived through global distillation, including PCBs, flame retardant chemicals, and per- and polyfluoroalkyl substances (PFAS). Our research has shown that Sivuqaq residents have concentrations of PCBs in their blood serum that are six to nine times higher than found in people who live in the lower-48 states. The people of Savoonga who have traditional connections to Northeast Cape have even higher levels of PCBs in their blood serum than people of Sivuqaq who are not associated with Northeast Cape. Our findings suggest that global transport of PCBs into the Arctic coupled with elevated levels in traditional foods results in elevated PCBs in Sivuqaq residents, while some residents experience added exposure from the military contamination at Northeast Cape. The community-based research on Sivuqaq is guided by elders and other community leaders, and now includes eight universities working together with the tribes and Alaska Community Action on Toxics.
This talk will summarize community-based research focused on assessing contaminants and health outcomes associated with formerly used defense sites, as well as persistent organic pollutants that accumulate in this region of the Arctic through long-range transport. Contamination of the Arctic exacerbated by the rapid pace and magnitude of climate change in the Arctic which is now known to be warming at a much faster rate than earlier studies predicted—nearly four times faster than the planet as a whole. Our research team has been conducting community-based participatory environmental health research with the tribes on Sivuqaq (traditional name for St Lawrence Island) for 24 years. Sivuqaq is located in the northern Bering Sea region of Alaska approximately 61 km from the Chukotka Peninsula of Russia and 322 km from the Alaskan mainland.
Much of our community-based research has focused on documenting the nature and extent of contamination at the formerly used defense site at Northeast Cape, including extensive sampling of sediments, plants, and fish. In partnership with the tribes, we have measured elevated contaminant levels correlated with endocrine disruption in people of the Island. We also investigate the levels and effects of persistent chemicals derived through global distillation, including PCBs, flame retardant chemicals, and per- and polyfluoroalkyl substances (PFAS). Our research has shown that Sivuqaq residents have concentrations of PCBs in their blood serum that are six to nine times higher than found in people who live in the lower-48 states. The people of Savoonga who have traditional connections to Northeast Cape have even higher levels of PCBs in their blood serum than people of Sivuqaq who are not associated with Northeast Cape. Our findings suggest that global transport of PCBs into the Arctic coupled with elevated levels in traditional foods results in elevated PCBs in Sivuqaq residents, while some residents experience added exposure from the military contamination at Northeast Cape. The community-based research on Sivuqaq is guided by elders and other community leaders, and now includes eight universities working together with the tribes and Alaska Community Action on Toxics.
